The site on the enzyme surface where the reactant fits is referred to as the:

Question

Quizplus · Accepted Answer

The term "active site" is used to describe the specific region on the surface of an enzyme where the substrate (or reactant) binds and undergoes a chemical reaction. This is the site where the enzyme catalyzes the conversion of the substrate to products. The other answer choices, like the allosteric site, refer to different regions on the enzyme surface that may be involved in regulating enzyme activity but are not the specific site of substrate binding.

The Site on the Enzyme Surface Where the Reactant Fits